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Home My WebLink AboutB11-0496 Kitchen Exhaust CR documents ARCHITECTURE URBAN DESIGN INTERIOR DESIGN January 3o, 2017 JR Mondragon Town of Vail 42 W. Meadow Drive Vail, CO 81657 RE: Reference : B11-o496 Strata Vail Permit Drawings Revision 32 Dear JR: • We are submitting to the TOV building department for review and approval the following : • Residential Kitchen Hoods Exhaust Air Requirements : 1. Refer to the Attached BCER Residential Kitchen Hoods Letter of Understanding. 2. Refer to the attached Testing and Balancing Report performed by Elite Balancing. Enclosures : • BCER Residential Kitchen Hoods Letter of Understanding • Elite Balancing TAB Report. • TOV Inspection Notice 2101063320011. Sincerely, Of COL Du ,70� ALEJANDR0 ,LIANES 202672 s kbArC4 0114> ,. . 1/30/2017 OZ Architecture, Inc. 1/3o/2017 Page 1 of 1 Gdzoo7\17oo4 Lionshead Inn\CA\Permits\Kitchen Hoods\TOV JR Mondragon Kitchen Exhaust Air Hoods Letter DENVER PHONE: 303.861.5704 2o17_013o.docx 3003 LARIMER STREET FAX 303.861.9230 DENVER BOULDER COLORADO SPRINGS DENVER,COLORADO 80205 WWW.OZARCH.COM „,417-7• 3 • Inspection Summary TOWN OF VAIL ' Inspection Result: Fail Inspector: Charlie Davis Permit Type Inspection Type Address Construction Mechanical Final 705 W LIONSHEAD CIR(210106332001) (2101063320011) Inspection Date: 12/06/2016 Permit#: B11-0496.004 TMK: 2101063320011 Applicant name: The Wells Partnership- Lisa Email: lisa@wellspartnership.com Phone: Comments: 1. Units B101, B102, B103 Provide CFM Rates for range hood, more or less than 400 CFM Provide balance report for system. Supply and returns in spaces not verified provide approved plans. 2. Inspector Signature 3. Applicant Signature w BCER Response The residential kitchen hoods in Units B101,B102 and B1.03 are specified Architecturally as 600 CFM hoods. The make-up air for all residential kitchen hoods over 400 CFM on this project is through the outside air ventilation duct connected to the return air side of the Fan Coil Units. Brook Corning-BCER December 6,2016 BCER . — Pnelneeding-- January 25, 2017 JR Mondragon Town of Vail Chief Building Inspector jmondragon@vailgov.com RE: STRATA VAIL RESIDENTIAL KITCHEN HOODS LETTER OF UNDERSTANDING Dear Mr. Mondragon: As we discussed last week,the third party inspectors have written up the kitchen hood with the following comments: Units B101, BI02, B103 Provide CFM Rates for range hoods, more or less than 400 CFM. Provide balance report for the system. Supply and returns in spaces not verified provide approved plans. " BCER has witnessed the testing of six different hoods on the project, from the smaller condos to the larger penthouse units. The test results are included in the attached test and balance report. All of the hoods tested are greater than 400 CFM. The question behind the inspection comment relates to the 2012 IMC section 505.2, which states that residential exhaust hood systems capable of exhausting in excess of 400 CFM shall be provided with make-up air at a rate approximately equal to the exhaust air rate... The design for this project utilizes the ventilation duct serving the fan coil units. The ventilation duct connects to the return side of the fan coil units and provides tempered OSA to the space for people ventilation and kitchen hood make-up. To make sure that the makeup air system is providing enough air, proof of flow was taken using indoor to outdoor pressure differential readings as provided by the Test and Balance Contractor. The TAB report shows minimal decrease in space pressure when the kitchen hoods are run through various speeds. This demonstrates the make-up for the kitchen hood is being drawn through the ventilation duct at basically the same rate as is required for the hood exhaust. The design for people ventilation as required by the 2012 IMC section 401.2 is to operate the FCU fans(and therefore the ventilation)continuously. In order to provide this ventilation,the ventilation duct must be open and operational 24/7. Therefore,the ventilation duct cannot be provided with a means of closure as required by section 505.2. During the balancing procedure units were tested with the FCU fans at low speed or off. The pressure differentials were not affected when the kitchen hoods where operating. Mr. JR Mondragon January 25, 2017 Page 2 Through actual field verification the required make-up air serving the residential units is adequate and will not cause infiltration from the exterior of the building, excessive negative pressures in the units and will not draw air in from the corridor during operation of the kitchen hoods. The Test and Balance Report demonstrates that the ventilation air is approximately equal to the exhaust air(by the pressure differential test), and the code requires that the ventilation air be 100%available for the occupants, so the isolation device will be open continuously and therefore not needed. Thank you. Please let us know if you have any questions. Sincerely, BCER ENGINEERING,INC. 'Rk" Q L10 111 e4 - � ��p rd •' .' Michael D. Schroeder, P.E. I C�: ! / �:0• 1 Associate Principal- Director of Engineering . '. 329 3 ff,:, '1 . •� +r.... MDS: bec f1 0, 1 L s �,t li C: Jeff Mapp—OZ Architecture 1�k � ��- 1 l �R0000.- 'ZS'I L Final Test and Balancing Report by Elite Balancing COLORADO SPRINGS OFFICE CORPORATE OFFICE TAMPA OFFICE 10807 NEW ALLEGIANCE DR,SUITE 400 5420 WARD ROAD,SUITE 200 4511 NORTH HIMES AVE,SUITE 200 COLORADO SPRINGS,COLORADO 80921 ARVADA,COLORADO 80002 TAMPA,FLORIDA 33614 719.533.1112 303.422.7400 813.449.4324 www.BCER.com ELITE NEte BALANCING N-413 2029 Kinnikinnick Dr. • Erie, CO 80516•Phone: (720) 523-0209 • Fax: (720)523-0225 • http://www.elitebalancing.com Certified Test, Adjust, and Balance Report Strata Vail Kitchen Hood Testing Address: 705 W. Lionshead Circle Vail, CO Date: 1/19/2017 Job Number: 2017-649 Mechanical Engineer: BCER General Contractor: PCL Submitted & Certified By: ancin e� 440 Elite Balancing LLC EiFihoZiejimai0 Certification Number: 3502 KEVIN L.SHAW Cp f RGATION 3502 Certification Exp Date: March 31, 2018ne NEBB Qualified Certified Professional: Kevin Shaw 9 !rut, The data presented in this report is a record of system measurements and final adjustments that have been obtained in accordance with the current edition of the NEBB PROCEDURAL STANDARDS FOR TESTING, ADJUSTING, AND BALANCING OF ENVIRONMEMTAL SYSTEMS. Any variances from design quantities, which exceed NEBB tolerances, are noted in the Test-Adjust-Balance Report Project Summary. Revision Number Date Description - 1 1/19/17 Final Report Issued Elite Balancing, LLC 1/6 ELITE N� B BALANCING NEt6g 2029 Kinnikinnick Dr. • Erie, CO 80516•Phone: (720)523-0209 • Fax: (720) 523-0225 • http://www.elitebalancing.com Table of Contents Instrument Calibration Report 3 Abbreviations Page 3 Report Summary/ Remarks 4 Fan Reports 5 Elite Balancing, LLC 2/6 ELITE N'E B BALANCING Ng g 2029 Kinnikinnick Dr. • Erie, CO 80516•Phone: (720) 523-0209 • Fax: (720) 523-0225 • http://www.elitebalancing.com Instrumentation Rotation Measurement Extech 461995 Temperature Measurement Extech HD500 Electrical Measurement Fluke 335 Air Pressure Measurement Alnor EBT731 Air Velocity Measurement Alnor EBT731 Air Volume Measurement Alnor EBT731 Humidity Measurement Extech HD500 Hydronic Pressure Measurement Alnor HM670 Abbreviations A Amperage FCU Fan Coil Unit NIC Not In Contract A/C Air Conditioning FG Floor Grille NO Normally Open AHU Air Handling Unit FILT Filter OBD Opposed Blade Damper B Boiler FLA Full Load Amps OSA Outside Air BD Backdraft Damper FPM Feet per Minute PH Phase BP Boiler Pump/Booster Pump FPVAV Fan Powered Variable Air Volume PSI Pounds per Square Inch BTUH British Thermal Unit FSD Fire Smoke Damper RA Return Air CAV Constant Air Volume ftH2O Feet of Water Column RF Return Fan CD Ceiling Diffuser FURN Furnace RG Return Grille CFM Cubic Feet per Minute GC General Contractor RH Relative Humidity CH Chiller GPM Gallons per Minute RPM Revolutions per Minute CP Condenser Pump HP Heat Pump RTU Roof Top Unit CRAC Computer Room Air Conditioner HP Horsepower SA Supply Air CT Cooling Tower HVAC Heating,Ventilating&Air Conditioning SF Supply Fan CUH Cabinet Unit Heater HW Heating Water SF Service Factor CW Chilled Water HWP Heating Water Pump SP Set Point CWP Chilled Water Pump HWR Heating Water Return SP Static Pressure CWR Chilled Water Return HWS Heating Water Supply SW Side Wall CWS Chilled Water Supply inH2O Inches of Water Column TA Transfer Air DB Dry Bulb LAT Leaving Air Temperature TDH Total Dynamic Head DDC Direct Digital Control LWT Leaving Water Temperature TEMP Temperature DIFF Differential MAU Make-Up Air Unit TF Transfer Fan DWDI Double Width,Double Inlet MBH 1000 BTU Per Hour THO Thermal Overload EAT Entering Air Temperature MC Mechinacal Contractor TSP Total Static Pressure EC Electrical Contractor MD Moterized Damper UH Unit Heater EF Exhaust Fan MOSA Minimum Outside Air UV Unit Ventilator EG Exhaust Grille MVD Manual Volume Damper V Voltage ESP External Static Pressure N/A Not Applicable VAV Variable Air Volume EWT Entering Water Temperature NAC No Access VEL Velocity FBO Furnished By Others NC Normally Closed WB Wet Bulb Elite Balancing, LLC 3/6 NE BB ELITE AN'E 2029 Kinnikinnick Dr. • Erie, CO 80516•Phone: (720) 523-0209 • Fax: (720)523-0225 • http://www.elitebalancing.com Report Summary I Remarks 1. None Elite Balancing, LLC 4/6 E LITE N., _,. E B.B BALANCING NELBB Fan Unit PROJECT: Strata Kitchen Hoods DATE: 1/19/2017 LOCATION: , CONTACT: Kevin Shaw PROJECT#: SYSTEM/UNIT: Room A202 Tested By: Kevin Shaw Date: 1/18/2017 Log: Room A202 1/18/2017 Kevin Shaw Pressure to out side.Fan off-0.01 Low-0.016 Medium-0.022 High-0.030 Boost-0.038 Room A202 Exhaust Inlet Summary System/Unit Inlet Type Size AK Factor Design Final Design Prelim Final %Final Velocity Velocity Airflow Airflow Airflow Diff. Inlet-01 Low Hood (3)6.75x8 1.125 304 342 Inlet-02 Med Hood .(3)6.75x8 1.125 467 525 Inlet-03 High Hood - (3)6.75x8 1.125 619 696 Inlet-04 Boost Hood (3)6.75x8- 1.125 _ 666 749 Totals: - I - - - - 0 0 2312 i 0 SYSTEM/UNIT: Room A403 Tested By: Kevin Shaw Date: 1/18/2017 Log: Room A403 1/18/2017 Kevin Shaw Pressure to out side.Fan off 0.005 Low-0.004 Medium-0.007 High-0.014 Boost-0.017 Room A403 Exhaust Inlet Summary System/Unit Inlet Type Size AK Factor Design Final Design Prelim ` Final %Final Velocity Velocity Airflow Airflow Airflow Diff.............. Inlet-01 Low Hood (4)6.75x8 1.5 247 371 Inlet-02 Med Hood (4)6.75x8 1.5 376 564 Inlet-03 High Hood (4)6.75x8- 1.5 491 737 Inlet-04 Boost Hood (4)6.75x8 1.5 531 797 Totals: - - - - - .. 0 0 2469 0 SYSTEM/UNIT: Room B102 Log: Room B102 1/18/2017 Kevin Shaw Pressure to out side.Fan off-0.013 Low-0.016 Medium-0.016 High-0.018 Boost-0.018 Room B102 Exhaust Inlet Summary System/Unit Inlet Type Size AK Factor Design Final Design Prelim Final %Final Velocity Velocity Airflow Airflow Airflow Diff. Inlet-01 Low Hood (4)6.75x8 1.5 228 342 Inlet-02 Med Hood (4)6.75x8 1.5 318 477 Inlet-03 High Hood (4)6.75x8 1.5 398 597 Inlet-04 Boost Hood (4)6.75x8 1.5 426 639 Totals: - - - - - 0 0 _ 2055 0 Elite Balancing, LLC 5/6 ELITE N, . , . . E BB B ......._.. Fan Unit PROJECT: Strata Kitchen Hoods DATE: 1/19/2017 LOCATION: , CONTACT: Kevin Shaw PROJECT#: SYSTEM/UNIT: Room B201 Tested By: Kevin Shaw Date: 1/18/2017 Log: Room B201 1/18/2017 Kevin Shaw Pressure to out side.Fan off-0.006 Low-0.013 Medium-0.021 High-0.021 Boost-0.021 Room B201 Exhaust Inlet Summary SystemlUnit Inlet Type Size AK Factor Design Final Design Prelim Final _ %Final Velocity Velocity Airflow Airflow Airflow Diff. Inlet-01 Low Hood (4)6.75x8 1.5 240 360 Inlet-02 Med Hood ' (4)6.75x8 1.5 325 - 488 Inlet-03 High Hood (4)6.75x8 1.5 378 567 Inlet-04 Boost^ Hood (4)6.75x8 1.5 405 _ 608 Totals: - _ - - - - 0 0 2023 0 SYSTEM/UNIT: Room B403 Tested By: Kevin Shaw Date: 1/18/2017 Log: Room B403 1/18/2017 Kevin Shaw Pressure to out side.Fan off-0.013 Low-0.015 Medium-0.04 High-0.04 Boost-0.03 Room B403 Exhaust Inlet Summary SystemlUnit Inlet Type` Size AK Factor Design Final Design Prelim Final %Final Velocity , Velocity Airflow Airflow Airflow Diff. Inlet-01 Low Hood '(4)6.75x8 1.5 208 312 ___ Inlet-02 Med Hood (4)6.75x8 1.5 333 500 Inlet-03 High Hood r(4)6.75x8 1.5 441 6 662 Inlet-04 Boost Hood (4)6.75x8 1.5 487 731 Totals: - _ - - - - 0 0 2205 0 Elite Balancing, LLC 6/6